Sun 03-Apr-11 03:31 PM | edited Sun 03-Apr-11 03:32 PM by MEMcD
The three rectangles are the locations of the three AF Points. What Focus Area mode are you using? To use the center AF point, set the AF Area mode to Single Point or Dynamic Area (see page 24 in the D40 Users Manual ). For BIF (Birds In Flight) Dynamic Area AF would be the best choice. Then use the Multi-Selector on the back of the camera to highlight the center AF Point. See page 3 in the D40 Users Manual. Good Luck and Enjoy your Nikons!